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AV-346 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] RGB SYNCHRONIZING SIGNAL CIRCUIT RGB SYNCHRONIZING SIGNAL CIRCUIT Description INFOID:0000000007347902 Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with AV control unit. Diagnosis Procedure INFOID:0000000007347903 Regarding Wiring Diagram information, refer to AV-385, "Wiring Diagram - With Navigation System" . 1. CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect display unit connector M92 and AV control unit con- nector M37. 3. Check continuity between display unit harness connector M92 (A) terminal 19 and AV control unit harness connector M37 (B) terminal 25. 4. Check continuity between display unit harness connector M92 (A) terminal 19 and ground. Are continuity results as specified? YES >> GO TO 2 NO >> Repair harness or connector. 2. CHECK RGB SYNCHRONIZING SIGNAL 1. Connect display unit connector M92 and AV control unit connec- tor M37. 2. Turn ignition switch ON. 3. Check signal between display unit harness connector M92 ter- minal 19 and ground. Are voltage readings as specified? YES >> Replace display unit. Refer to AV-422, "Removal and Installation" NO >> Replace AV control unit. Refer to AV-420, "Removal and Installation" . A B Continuity Connector Terminal Connector Terminal M92 19 M37 25 Yes A — Continuity Connector Terminal M92 19 Ground No AWNIA1792ZZ (+) (-) Condition Reference signal Connector Terminal M92 19 Ground Receive ALNIA0389GB SKIB3603E August 2012 2012 Pathfinder |